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三爪卡盘盘体上装卡爪的导轨槽(图1),形状复杂、尺寸公差小,光洁度要求高。一般工厂都采用组合铣刀铣削加工,我厂用这种方法加工的零件很难达到图纸要求。为此,我们设计制造了一种组合拉刀(图2),用拉削代替精铣,效果良好。拉削后的工件尺寸稳定、形状准确、光洁度达▽6以上,和铣削相比提高工效显著。
Three claw chuck plate body Claw rail groove (Figure 1), the shape of complex, small size tolerance, high finish. General mill milling cutter combination are used, I plant this part is difficult to process drawings to meet the requirements. To this end, we designed and manufactured a combination of broach (Figure 2), instead of using precision broaching broaching, the effect is good. Broaching after the workpiece size stability, shape accurate, finish up to ▽ 6, compared with milling to improve work efficiency significantly.